Data commit

Task/Cholesky-decomposition/Sidef/cholesky-decomposition-1.sidef

@@ -0,0 +1,13 @@
+func cholesky(matrix) {
+    var chol = matrix.len.of { matrix.len.of(0) }
+    for row in ^matrix {
+        for col in (0..row) {
+            var x = matrix[row][col]
+            for i in (0..col) {
+                x -= (chol[row][i] * chol[col][i])
+            }
+            chol[row][col] = (row == col ? x.sqrt : x/chol[col][col])
+        }
+    }
+    return chol
+}

Task/Cholesky-decomposition/Sidef/cholesky-decomposition-2.sidef

@@ -0,0 +1,18 @@
+var example1 = [ [ 25, 15, -5 ],
+                 [ 15, 18,  0 ],
+                 [ -5,  0, 11 ] ];
+
+say "Example 1:";
+cholesky(example1).each { |row|
+    say row.map {'%7.4f' % _}.join(' ');
+}
+
+var example2 = [ [ 18, 22,  54,  42],
+                 [ 22, 70,  86,  62],
+                 [ 54, 86, 174, 134],
+                 [ 42, 62, 134, 106] ];
+
+say "\nExample 2:";
+cholesky(example2).each { |row|
+    say row.map {'%7.4f' % _}.join(' ');
+}